:root {
  color-scheme: light;
  --color-page: #f8fafc;
  --color-surface: #ffffff;
  --color-surface-muted: #f3f4f6;
  --color-text: #111827;
  --color-text-secondary: #374151;
  --color-muted: #6b7280;
  --color-icon-subtle: #9ca3af;
  --color-border: #e5e7eb;
  --color-blue: #2563eb;
  --color-blue-strong: #1d4ed8;
  --color-blue-soft: #eff6ff;
  --color-blue-muted: #dbeafe;
  --color-blue-border: #bfdbfe;
  --color-blue-deep: #1e3a8a;
  --color-amber: #d97706;
  --color-amber-soft: #fffbeb;
  --color-amber-border: #fde68a;
  --color-amber-deep: #92400e;
  --color-purple: #7c3aed;
  --color-purple-soft: #f5f3ff;
  --color-purple-border: #ddd6fe;
  --color-purple-deep: #5b21b6;
  --color-green: #16a34a;
  --color-green-soft: #f0fdf4;
  --color-green-border: #bbf7d0;
  --color-green-deep: #166534;
  --color-focus-ring: rgb(37 99 235 / 0.28);
  --color-topbar-bg: rgb(255 255 255 / 0.92);
  --color-backdrop: rgb(15 23 42 / 0.45);
  --color-overlay-xs: rgb(255 255 255 / 0.16);
  --color-overlay-sm: rgb(255 255 255 / 0.18);
  --color-overlay-md: rgb(255 255 255 / 0.20);
  --color-overlay-lg: rgb(255 255 255 / 0.28);
  --shadow-card: 0 1.25rem 3rem rgb(15 23 42 / 0.14);
  --shadow-soft: 0 0.5rem 1.5rem rgb(15 23 42 / 0.08);
  --radius-sm: 0.5rem;
  --radius-md: 0.75rem;
  --radius-lg: 1rem;
  --font-family: "Segoe UI", system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  min-height: 100%;
  background: var(--color-page);
  font-family: var(--font-family);
}

body {
  min-height: 100vh;
  margin: 0;
  color: var(--color-text);
}

body,
button,
input,
select {
  font: inherit;
}

button,
a {
  -webkit-tap-highlight-color: transparent;
}

a {
  color: inherit;
  text-decoration: none;
}

button {
  border: 0;
  cursor: pointer;
}

h1,
h2,
h3,
p {
  margin: 0;
}

ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

.app {
  min-height: 100vh;
}

.icon {
  width: 1.25rem;
  height: 1.25rem;
  flex: 0 0 auto;
}

.sr-only {
  position: absolute;
  width: 0.0625rem;
  height: 0.0625rem;
  padding: 0;
  margin: -0.0625rem;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: fixed;
  inset-block-start: 1rem;
  inset-inline-start: 1rem;
  z-index: 20;
  transform: translateY(-200%);
  border-radius: var(--radius-sm);
  background: var(--color-text);
  color: var(--color-surface);
  padding: 0.75rem 1rem;
}

.skip-link:focus {
  transform: translateY(0);
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.625rem;
  min-height: 2.75rem;
  border-radius: var(--radius-sm);
  padding: 0.75rem 1rem;
  font-weight: 700;
  transition: background 160ms ease, color 160ms ease, border-color 160ms ease, transform 160ms ease;
}

.button:hover {
  transform: translateY(-0.0625rem);
}

.button:focus-visible {
  outline: 0.1875rem solid var(--color-focus-ring);
  outline-offset: 0.1875rem;
}

.button--primary {
  background: var(--color-blue);
  color: var(--color-surface);
}

.button--primary:hover {
  background: var(--color-blue-strong);
}

.brand-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.5rem;
  height: 2.5rem;
  border-radius: var(--radius-sm);
  background: var(--role-color, var(--color-blue));
  color: var(--color-surface);
}